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首頁 > 鋼管百科 > 直縫鋼管焊接前質(zhì)量控制

直縫鋼管焊接前質(zhì)量控制

日期:2020-02-29
直縫鋼管焊前質(zhì)量控制

直縫埋弧焊鋼管焊接前的質(zhì)量控制為:

1) 一是把好原材料質(zhì)量關,經(jīng)檢驗合格后才正式進入施工現(xiàn)場,堅決杜絕使用不合格鋼材。

2) 其次是焊接材料的管理。檢查焊接材料是否為合格產(chǎn)品,貯存和烘烤制度是否執(zhí)行,焊縫表面是否清潔無銹,焊條涂層是否完好,有無霉變。

3) 再次,清潔焊接區(qū)域管理。清洗QA焊縫區(qū),無水、油、銹和氧化層污垢,這對防止外部焊縫缺陷產(chǎn)生重要作用。

4) 選擇合適的焊接方法應先實施試焊,后施焊的原則。

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